溶液中镉（Ⅱ）与某些氨基酸配合物稳定性的研究

用ｐＨ－电位滴定法测定了镉（Ⅱ）与某些氨基酸（其中包括丙氨酸（ａｌａ￣－）、亮氨酸（ｌｅｕ￣－）、色氨酸（ｔｒｙ￣－）、苯丙氨酸（ｐｈｅ￣－）配合物在离子强度Ｉ＝０．１０（ＫＮＯ＿３）、温度为１５℃、２５℃、３５℃和４５℃条件下的１、２级稳定常数，用温度系数法求出了配合物形成反应的热力学焓变ΔＨ，并进而求出了相应的自由能变化ΔＧ和熵变ΔＳ，发现配合物的稳定性与氨基酸配体的碱性强度之间存在直线自由能关系。     

D形截面环流器中的磁面及LHCD的研究

本文利用环形系统的Ｇｒａｄ－Ｓｈａｆｒａｎｏｖ方程得到了Ｄ形截面的托卡马克磁面位形，并利用射线追踪技术研究了Ｄ形磁面位形下低杂波的运动形态。定性地研究了Ｄ形磁面位形下利用低杂波驱动电流的可行性，优化地给出了驱动电流的最佳方式。     

Asphericity in the Fermi Surface and Fermi Energy of Na－K,Na－Rb and Na－Cs Binary Alloys

Detailed theoretical investigations into asphericity in the Fermi surface(FS) and Fermi energy(FE) of Na1-xKx,Na1-xRbx,and Na1-xCsx binary solid solutions are carried out for the first time,The allying behavior of the K,Rb,and Cs with the Na generates the Fermi surface distortion(FSD) of bcc simple metals,The FS of Na-K,Na-Rb,and Na-Cs solid solution is a distorted sphere with the largest deviation along[110],We have found that the impact of local-field correction function on FSD is maximum at [100] point and minimum at [111] point.The exchange and correlation effect is found to suppress the value of FE.     

Magnetic Properties and Magnetoresistance Effect of YMn6 Sn6—x Crx （x=0—0.8） Compounds

The magnetic properties and magnetoresistance effect of YMn6Sn6-x Crx(x=0-0.8) compounds have been experimentally studied by magnetic properties and resistivity measurements in the applied field range 0-5T.The compound (x=0.8) displays a ferromagnetic behaviour,while the compounds (x=0-0.4) display an antiferromagnetic behaviour in the whole ordering temperature range.The compounds(x=0.5,0.6) experienced a transition from an antiferromagnetic state to a ferromagnetic state with increasing temperature.The compound with x=0.8 is rapidly saturated in the lower magnetic field with saturation magnetization of 35.92emu/g.The compounds(x=0-0.6) display a field-induced metamagnetic transition,and the threshold fields decrease with increasing Cr content.The cell-volume V of compounds(x=0-0.8) increases,and the ordering temperature decreases with the increasing Cr content.A large magnetoresistance effect was observed for the compounds (x=0.4,0.5),and the maximum absolute value at 5K are 32% and 24% under 5T for x=0.4 and x=0.5,respectively.     

磁绝缘传输线振荡器中辐射场的非线性行为

 导出了磁绝缘传输线振荡器(MILO)中辐射场的非线性演化方程，并讨论了在临界值点附近可能出现非线性不稳定解的条件。结论是：(1)非线性增长速率与线性增长速率的比值g<1.2，且远离g+γ=1(γ为非线性相位增长率与线性相位增长率的比值)点时，出现非稳定解的失谐量临界值很小，而线性增长速率临界值临界值很大，容易出现非稳定解；(2)当g≥1.2时，任意小的失谐量都可以使场出现非稳定解；(3)线性增长速率越大，越不容易出现非稳定解。     

Magnetic Properties and magnetic phase diagrams of intermetallic compound GdMn2Ge2

A modified Yafet－Kittle model is applied to investigate the magnetic properties and magnetic phase transition of the intermetallic compound GdMn_2Ge_2. Theoretical analysis and calculation show that there are five possible magnetic structures in GdMn_2Ge_2. Variations of external magnetic field and temperature give rise to the first-order or second-order magnetic transitions from one phase to another. Based on this model, the magnetic curves of GdMn_2Ge_2 single crystals at different temperatures are calculated and a good agreement with experimental data has obtained. Based on the calculation, the H－T magnetic phase diagrams of GdMn_2Ge_2 are depicted. The Gd－Gd, Gd－Mn, intralayer Mn－Mn and interlayer Mn－Mn exchange coupling parameters are estimated. It is shown that, in order to describe the magnetic properties of GdMn_2Ge_2, the lattice constant and temperature dependence of interlayer Mn－Mn exchange interaction must be taken into account.     

一类混杂动态系统的能控性（I）——基本结果

首次将时滞现象引入到线性切换系统的模型中，研究含有时滞线性切换系统的能控性及其判定条件．全部工作由三部分组成，第I部分首先，提出含时滞的线性切换系统的数学模型，并介绍切换系统的基本概念——切换序列．其次，引入列空间、循环不变子空间和广义循环不变子空间等基本几何概念，给出一些有关概念的基本性质，特别是分离引理．然后以一个基本引理的形式揭式某一积分方程的解集与广义循环不变子空间之间的联系，这个引理将在能控性的判定中起关键作用．这些概念和引理都将作为以后展开能控性分析所必需的研究工具．     

球形环嬗变堆包层冷却管道热工设计与热结构力学分析

利用球形环托卡马克作为聚变中子源、处置裂变堆长寿命放射性核废料的嬗变堆作为聚变能早期应用的重要途径。因核废物的日益积累和已具备现实的技术基础而受到广泛的重视。也是目前国际聚变界研究的前沿课题。